Insta360 just released a firmware update for the ONE that, as I've been telling people, continues to improve the stabilization algorithms. Here's a side-by-side on a Mavic Pro done by Jean-Marie Cannie, showing new f/w (left) vs. old (right). I can't wait to get my 360 up in the air -- it's raining right now.
After updating, I did a little experimentation to test some theories I have about 360-sphere stabilization. Lacking a mechanical gimbal to keep the camera pointed in the same direction, 360 cameras use the fact that they have the entire image space, so can simply rotate it to correct orientation given orientation data from a gyro.
However, this introduces blurring at lower shutter speeds, an artifact not present in a gimbal-stabilized camera. The obvious way to reduce this problem is use higher shutter speeds. Confirmed in the video I took below:
In the first part, the ISO is 400, shutter 1/30. Note the blurriness as the camera is rapidly rotated back and forth.
In the second part, we're at 100 and 1/120. Much less blur artifacts.
This technology is at the very cutting edge, ground floor. I'd predict that mechanical gimbals are headed for the same graveyard as buggy whips. There's still plenty of distortion, some blurring, and other artifacts. Nothing that can't be fixed.
I'm waiting for DJI's first 360 camera drone with no gimbal. 1-2 years.